Update CIPHER variable name

Author: danny-gallagher

src/main/java/com/mastercard/developer/encryption/jwe/AESCBC.java

@@ -8,7 +8,7 @@
 import java.security.GeneralSecurityException;
 
 public class AESCBC {
-    private static final String CIPHER = "AES/CBC/PKCS5Padding";
+    private static final String CYPHER = "AES/CBC/PKCS5Padding";
 
     public static byte[] decrypt(SecretKey secretKey, JWEObject object) throws EncryptionException {
         SecretKeySpec aesKey = new SecretKeySpec(secretKey.getEncoded(), 16, 16, "AES");
@@ -17,7 +17,7 @@ public static byte[] decrypt(SecretKey secretKey, JWEObject object) throws Encry
         byte[] iv = Base64Codec.decode(object.getIv());
 
         try {
-            Cipher cipher = Cipher.getInstance(CIPHER);
+            Cipher cipher = Cipher.getInstance(CYPHER);
             SecretKeySpec keyspec = new SecretKeySpec(aesKey.getEncoded(), "AES");
             IvParameterSpec ivSpec = new IvParameterSpec(iv);
             cipher.init(2, keyspec, ivSpec);

src/main/java/com/mastercard/developer/encryption/jwe/AESGCM.java

@@ -10,15 +10,15 @@
 import java.security.GeneralSecurityException;
 
 public class AESGCM {
-    private static final String CIPHER = "AES/GCM/NoPadding";
+    private static final String CYPHER = "AES/GCM/NoPadding";
 
     public static byte[] decrypt(SecretKey cek, JWEObject obj) throws EncryptionException {
         byte[] aad = obj.getRawHeader().getBytes(StandardCharsets.US_ASCII);
         SecretKey aesKey = new SecretKeySpec(cek.getEncoded(), "AES");
         GCMParameterSpec gcmSpec = new GCMParameterSpec(128, Base64Codec.decode(obj.getIv()));
 
         try {
-            Cipher cipher = Cipher.getInstance(CIPHER);
+            Cipher cipher = Cipher.getInstance(CYPHER);
             cipher.init(2, aesKey, gcmSpec);
             cipher.updateAAD(aad);
             return cipher.doFinal(ByteUtils.concat(Base64Codec.decode(obj.getCipherText()), Base64Codec.decode(obj.getAuthTag())));